public interface IntMap {

    public int size();

    public boolean isEmpty();

    public boolean containsKey(int key);

    public boolean containsValue(int value);

    public int get(int key);

    public int put(int key, int value);

    public int remove(int key);

    public void clear();

    //public void putAll(Map m);

    //public Set keySet();

    //public Collection values();

}
